Abstract: In a method for free spraying of the nozzles of an inkjet print head, in particular in a franking and/or addressing machine, in which the print media are directed past a stationary inkjet, at least the nozzles that are not participating in the generation of the current information-conveying print image are freely sprayed onto the current print medium in a mode that is irrelevant for the print image evaluation, while retaining the print position for the inkjet print head. The image-irrelevant mode can be free spraying in a region that is irrelevant for the print image evaluation or in a print pattern that cannot be evaluated. The size and/or number of the dots per pixel is thereby significantly smaller than for an evaluatable pixel. It is thereby ensured that each nozzle is activated at least once during the print image generation. Time is saved and the letter travel is optimized by the retention of the print position.

Abstract: An inverter is devised to avoid high-frequency voltages at input terminals and to allow good efficiency thanks to its simple and cost-optimized circuit layout. This is achieved by a method of converting a direct current voltage, more specifically from a photovoltaic source of direct current voltage, into an alternating current voltage at a frequency through a bridge circuit comprising switching elements (V1-V 4) and free-wheeling elements (D1-D4), said switching elements (V1-V4) being on the one side gated at the frequency and on the other side clocked at a high clock rate, a direct current voltage circuit, an alternating current voltage circuit and a plurality of free-wheeling phases being provided.

Abstract: In a method for weighing a number of items, such as letters to be franked, on a transport belt that moves over a weighing plate, the base of which is formed by the transport belt, the transport speed of the belt is slowed within a measurement time range, that starts from the beginning of a weighing event on the weighing plate until a stable weight measurement occurs, and is accelerated outside of this measurement time range, after the occurrence of a stable weight value for a current item on the weighing plate, the next-following item is transported onto the weighing plate by the belt, and the weight of the next-following item is determined by the weight increase due to inflow of the next-following item and the weight decrease due to outflow of the current item.

Abstract: A method of opening a security housing that requires authorization and unlocking moves the printing module transversely by a transverse mover into an additional unlocked position, as a result of which, the security housing or an access thereto is unlocked. The configuration has a mechanical locking or element and a printing module. The printing module is mounted such that it can be moved transversely to the transporting direction, for mechanically releasing the lock of a security-housing part directly or indirectly, by the security-housing part only being released once an additional security-housing part has been unlocked. The latter has a locking element that is disposed in the interior of the security housing and can be actuated by the printing module.

Abstract: In a method and arrangement for controlling a dynamic scale, the conveying speed of a conveyor belt for items of mail in the dynamic operating mode is independent of the format of the pieces of mail. During dynamic weighing, a controller of the scale deactivates the normal speed regulation for a DC motor and an unregulated pulsed voltage is applied to the DC motor. By an interaction of the motor with a tensioning device for a defined setting of the conveyor belt tension and due to a vibration-damped structure of the conveying arrangement of the scale, the conveying speed changes dependent on the weight of the piece of mail in a measuring time range.

Abstract: A dynamic scale has a conveyor, a weighing pan, a weighing cell, sensors and an electronic control unit that, in addition to controlling the conveyor means (4), implements an evaluation of a number measured weight values that are obtained from the weighing cell and performs a measured value correction on the basis of specific parameters, and supplies a corrected weight value to a postage meter machine via an interface. A method for a control of the conveyor, evaluation of the measured values from the weighing cell, and formulation of a valid output weight value includes an overload check that is made by comparing a measured weight value lying in the middle of the number of measured values to at least one overload limit value, and formation of a decision parameter from the measured values, in a validity check, for comparison to at least one shutoff criterion. If the validity check determines that the measured values from the weighing cell are valid, they are used to form the output weight value.

Abstract: A method of opening a security housing that requires authorization and unlocking moves the printing module transversely by a transverse mover into an additional unlocked position, as a result of which, the security housing or an access thereto is unlocked. The configuration has a mechanical locking or element and a printing module. The printing module is mounted such that it can be moved transversely to the transporting direction, for mechanically releasing the lock of a security-housing part directly or indirectly, by the security-housing part only being released once an additional security-housing part has been unlocked. The latter has a locking element that is disposed in the interior of the security housing and can be actuated by the printing module.

Abstract: A configuration protects a printing module in a mail processing appliance. The mail processing appliance has a supporting frame for the printing mechanism in a non-secure area and has a transverse movement device for transverse movement of a printing module. The printing module is disposed in the supporting frame such that it can move transversely with respect to a direction of mail item transport and is mechanically protected against unauthorized access. A protection cap is attached to the printing carriage and is constructed to surround an area of the variable position printing module that is to be protected. The movement area of the printing module is bounded by the walls of a box within the supporting frame. Impeding devices are provided to impede the transverse movement of the transverse movement device of the printing module once a cover has been opened or removed. The cover covers an opening in the housing, with the opening being provided for replacement of at least one ink cartridge.

Abstract: A security chassis for a secure area in the interior of a secure housing having a supporting frame for the printing mechanism in the non-secure area, a printing module being arranged such that it can move in the supporting frame and being protected mechanically against unauthorized access. The supporting frame is supported on at least one functional edge of at least one chassis shell, and at least two mutually spaced chassis shells surround the secure area. The at least one functional edge has ventilation openings formed at its margin. The geometric shape of the edge of the functional edge making penetration of tools into the secure area enclosed by the two chassis shells impossible.

Abstract: In a dynamic scale, and a method for controlling a dynamic scale, an item to be weighed is transported by a transport device to a weighing cell. The transport device is operable in a number of different operating modes. At the weighing cell, a measured weight value is obtained, and this measured weight value is subsequently interpreted and, based on the interpretation of the measured weight value, the transport device is switched to a different operating mode, which may include reversing the direction of the transport device so as to permit the item to be re-weighed and subsequently discharged from the scale.

Abstract: In a method for the control of a fast dynamic scale a first operating mode controls the transport device for transport of postal matter to a further processing station, a measurement with a weighing cell during the transport is made and an evaluation of the measured values with the letter format microprocessor for the weight determination given dynamic weighing, and weighed values are supplied to the further processing station. An automatic switching into a second operating mode for the semi-dynamic operation of the scale with static weighing ensues dependent on the result of a determination of the dimensions of the following piece of mail in a first processing station arranged upstream in the mail stream.

Abstract: In a method for the control of a fast dynamic scale a first operating mode controls the transport device for transport of postal matter to a further processing station, a measurement with a weighing cell during the transport is made and an evaluation of the measured values with the letter format microprocessor for the weight determination given dynamic weighing, and weighed values are supplied to the further processing station. An automatic switching into a second operating mode for the semi-dynamic operation of the scale with static weighing ensues dependent on the result of a determination of the dimensions of the following piece of mail in a first processing station arranged upstream in the mail stream.

Abstract: In a dynamic scale, and a method for controlling a dynamic scale, an item to be weighed is transported by a transport device to a weighing cell. The transport device is operable in a number of different operating modes. At the weighing cell, a measured weight value is obtained, and this measured weight value is subsequently interpreted and, based on the interpretation of the measured weight value, the transport device is switched to a different operating mode, which may include reversing the direction of the transport device so as to permit the item to be re-weighed and subsequently discharged from the scale.

Abstract: An apparatus for weighing moving postal items, particularly letters arranged standing on edge, has a weighing pan for the postal items having a lightweight structure resistant to bending and being torsionally stiff, the weighing pan being coupled to a weighing cell at the approximate location of the shared center of gravity of the weighing pan 6 and a piece of mail arranged centrally on the weighing pan 6 and having the highest allowable weight and the largest allowable dimensions. The weighing pan has a back wall 61 for guiding the piece of mail and a transport unit for the piece of mail that simultaneously forms the bottom of the weighing pan.

Abstract: An inserter system has controllable, optional delivery of sheet filling material and envelopes into which the filling material is to be inserted feeds these items from respective multiple station feeders in order to transfer a compiled set of filling material to the inserter and folding unit aligned and with identically oriented leading edges. The delivery of the filling material and envelopes for the insertion ensues without a conveyor deck and without an intermediate stop, proceeding from the programmable multiple station feeders to the folding unit integrated in the inserter. Driven, common drum arrangements for both systems serve as connecting elements between the respective multiple station feeders for filling material and envelopes. The common drum arrangement allows the connection of devices for inserting mailings given a minimization of the structural size and an increase in the reliability at the same time.